It depends on what you believe. I choose to believe that he was real at some point in time. Don't let anyone tell you he is for sure because there is no real, hard evidence; as I said, it all comes down to what you choose to believe.
Prepare yourself, here come all the religious arguments.
Jesus while on earth was 100% man and 100% God. He was God in the beginning and is sitting at the right hand of the Father right now. God The Father, God the Son, And God The Holy Spirit. There are all one God with three different personalities